v0.1.13-beta

• Added URL as a module
• Added navigator.userAgent
• Implemented AbortController/AbortSignal
• Port Lambda Runtime Interface Client to Rust (perf improvement)
• Increase fetch compat (abort signal, response encoding/decompression, redirect handling)
• Implemented DOMException
• Dependency updates
• Bundle @aws-sdk/client-cognito-identity-provider
• HTTP/2 support
• Expose crypto on global this
• Bug fixes

Full list of changes:
v0.1.12-beta...v0.1.13-beta

v0.1.12-beta

• Fix JSON.stringify of undefined values
• Implemeted some fs sync APIs
• Updated dependencies
• Remove assert in favor of expect for testing
• Minor fixes

v0.1.11-beta

• Optimized LLRT for containers. Use llrt-container-arm or llrt-container-x64
• Added a few FS sync APIs
• Embedded more @smithy packages
• Minor optimization tweaks
• Bugfixes & dependecy upgrades

v0.1.10-beta

• Change connection pool idle timeout to 15 sec
• Minor bugfixes

v0.1.9-beta

• Fix S3 Object Read

v0.1.8-beta

• JSON.stringify bugfix for custom objects with toJSON() method
• Increase WHATWG/WinterCG Fetch compatibility:
  • Add Blob
  • Make Request and Response instantiable from global scope
  • Add missing properties
• Update dependencies
• Minor bugfixes

v0.1.7-beta

• XML bugfixes

v0.1.6-beta

• Bugfixes
• Dependency updates

v0.1.5-beta

• Use SnMalloc allocator for improved performance.
• Switch libc from gnu to musl
• Bug fixes
• Dependency upgrades
• Implement structuredClone in global object

v0.1.4-beta

• Over 2x faster JSON parsing & stringify:

    Size 2580:
            parse: 49.333µs vs. 89.792µs
            stringify: 31µs vs. 92.375µs
    Size 51701:
            parse: 494.458µs vs. 1.160125ms
            stringify: 427.791µs vs. 1.097625ms
    Size 517001:
            parse: 4.932875ms vs. 11.911375ms
            stringify: 3.925875ms vs. 10.853125ms
    Size 5170901:
            parse: 56.0855ms vs. 126.783833ms
            stringify: 38.671083ms vs. 107.312875ms
    Size 51718901:
            parse: 731.7205ms vs. 1.285825541s
            stringify: 395.82225ms vs. 1.39267225s
    Size 517288901:
            parse: 6.886183416s vs. 14.985707583s
            stringify: 3.957781167s vs. 10.885577917s
  

• 7x faster integer and float toString():

    Benchmark 1: target/release/llrt
    Time (mean ± σ):      1.568 s ±  0.016 s    [User: 1.555 s, System: 0.007 s]
    Range (min … max):    1.558 s …  1.610 s    10 runs
    
    Benchmark 2: target/release/llrt-next
    Time (mean ± σ):     205.1 ms ±   3.1 ms    [User: 196.9 ms, System: 2.2 ms]
    Range (min … max):   200.0 ms … 213.1 ms    14 runs
    
    Summary
    target/release/llrt-next ran
    7.65 ± 0.14 times faster than target/release/llrt
  

• Improved logging:

  • LLRT now supports advanced logging controls for AWS Lambda
  • requestId is now captured and outputted with logging
  • Console has some performance improvements by reusing String and avoiding allocations